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Effects of Ocimum spp. essential oil on Monilinia laxa in vitro

One of the most important postharvest diseases of peach and nectarine is brown rot caused by the fungus Monilinia laxa. Increasing concern related to the toxic effect of the pesticide residues on fruits has enhanced the interest for the control of postharvest pathogenic fungi using biologically active constituents of plants such as essential oils. Species from genus Ocimum are known to possess essential oils with antifungal and fungicidal properties. The present paper reports the results of essential oil composition of four basil taxa and preliminary screening of their antifungal activity against M. laxa. The greatest effectiveness was achieved by the essential oils from O. basilicum var. purpurascens and O. tenuiflorum whose activity was high throughout the testing period of 23 days.

antifungal activity; basil; essential oil; Monilia laxa

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